Patents by Inventor Yasuyuki Katakami

Yasuyuki Katakami has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • AQUEOUS RESIN COMPOSITION COMPRISING FILM-FORMING AID, AND STEEL SHEET SURFACE TREATMENT AGENT CONTAINING THE SAME
    Publication number: 20140364552
    Abstract: A problem to be solved by the present invention is to provide a film-forming aid having low toxicity and film-forming performance equivalent to N-methyl-2-pyrrolidone and also provide an aqueous resin composition and a steel sheet surface treatment agent each containing the film-forming aid. The present invention relates to a film-forming aid including at least one selected from the group consisting of 1,3-butanediol (A1) and 1,2-butanediol (2-1), and relates to an aqueous resin composition and a steel sheet surface treatment agent each containing the film-forming aid.
    Type: Application
    Filed: October 12, 2012
    Publication date: December 11, 2014
    Applicant: DIC CORPORATION
    Inventor: Yasuyuki Katakami
  • Quaternary ammonium compound, process for producing the same, therapeutic agent for cerebrovascular disorder, and therapeutic agent for heart disease
    Patent number: 7687546
    Abstract: A quaternary ammonium compound of the present invention is a quaternary ammonium compound represented by general formula (I) or (I?) (wherein, A represents a linear alkyl group having 1 to 4 carbon atoms, a branched alkyl group having 2 to 4 carbon atoms, a linear alkyl group having 1 to 4 carbon atoms and a hydroxyl group, or a branched alkyl group having 2 to 4 carbon atoms and a hydroxyl group, R1 to R3 may be the same or different and represent a linear or branched alkyl group having 1 to 12 carbon atoms, one of R4 to R8 represents CO2? or SO3?, while no more than three of the remaining R4 to R8 represent a group selected from the group consisting of a hydroxyl group and an alkoxy group having 1 to 4 carbon atoms, and other R4 to R8 represent a hydrogen atom, one of R?4 to R?8 represents CO2H or SO3H, no more than three of the remaining R?4 to R?8 represent a group selected from a protected hydroxyl group and an alkoxy group having 1 to 4 carbon atoms, while other R?4 to R?8 represent a hydrogen atom,
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: March 30, 2010
    Assignee: Activus Pharma Co., Ltd.
    Inventors: Hidetsugu Takagaki, Yoshiyuki Sano, Yasuyuki Katakami, Masanori Miyamoto
  • Quarternary Ammonium Compound, Process for Producing the Same, Therapeutic Agent for Cerebrovascular Disorder, and Therapeutic Agent for Heart Disease
    Publication number: 20080269345
    Abstract: A quaternary ammonium compound of the present invention is a quaternary ammonium compound represented by general formula (I) or (I?) (wherein, A represents a linear alkyl group having 1 to 4 carbon atoms, a branched alkyl group having 2 to 4 carbon atoms, a linear alkyl group having 1 to 4 carbon atoms and a hydroxyl group, or a branched alkyl group having 2 to 4 carbon atoms and a hydroxyl group, R1 to R3 may be the same or different and represent a linear or branched alkyl group having 1 to 12 carbon atoms, one of R4 to R8 represents CO2? or SO3?, while no more than three of the remaining R4 to R8 represent a group selected from the group consisting of a hydroxyl group and an alkoxy group having 1 to 4 carbon atoms, and other R4 to R8 represent a hydrogen atom, one of R?4 to R?8 represents CO2H or SO3H, no more than three of the remaining R?4 to R?8 represent a group selected from a protected hydroxyl group and an alkoxy group having 1 to 4 carbon atoms, while other R?4 to R?8 represent a hydrogen atom,
    Type: Application
    Filed: March 29, 2005
    Publication date: October 30, 2008
    Applicants: Dainippon Ink and Chemicals, Inc.
    Inventors: Hidetsugu Takagaki, Yoshiyuki Sano, Yasuyuki Katakami, Masanori Miyamoto